CVE-2026-40393HighCVSS 8.1

In Mesa before 25.3.6 and 26 before 26.0.1, out-of-bounds memory access can occur in WebGPU because the amount of to-be-allocated data depends on an untrusted party, and is then used for alloca.

Published
June 2, 2026
Last Modified
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🔗 CVE IDs covered (1)

CVE-2026-40393 →

🎯 Affected products3

  • azl3 mesa 24.0.1-6 on Azure Linux 3.0
  • cbl2 mesa 21.0.0-4 on CBL Mariner 2.0
  • cbl2 mesa 21.0.0-4 on CBL-Mariner 2.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 24.0.1-8 KBRelease Notes (Security Update)

🔗 References (2)